An extensive experimental investigation of Fe-based Heusler alloys has been performed in order to potentially prepare new materials which are tetragonally distorted and have large perpendicular magnetic anisotropy crucial not only for the STT-MRAM applications but also for magnetic shape memory devices. Based on criteria demanded for the MSM applications 25 Fe₂YZ various compounds were selected for the synthesis using arc melting from more than 60 systems suggested theoretically. Only four compounds Fe₂MnSn, Fe₂NiSi, Fe₂NiGe, and Fe₃Ga were homogeneous single phase. None of the studied Fe-based materials exhibited the predicted tetragonal structure. Magnetic measurements confirmed that all investigated compounds are soft ferromagnets with no sign of a structural transition. Our results contradict the ab-initio calculations showing the limits of theoretical predictions by incomplete high throughput calculations as well as the limitations of the standard synthesis techniques.

为了潜在地制备呈四边形扭曲且具有大的垂直磁各向异性的新材料，已对铁基赫斯勒合金进行了广泛的实验研究，不仅对STT-MRAM应用而且对磁性形状记忆器件也至关重要。根据MSM应用所需的标准，从理论上建议的60多个系统中使用电弧熔化选择了25 Fe ₂ YZ各种化合物进行合成。仅4种化合物Fe ₂ MnSn，Fe ₂ NiSi，Fe ₂ NiGe和Fe ₃Ga均为均质单相。研究的铁基材料均未显示出预测的四方结构。磁性测量证实，所有研究的化合物均为软铁磁体，没有结构转变的迹象。我们的结果与ab-initio计算矛盾，后者显示了不完整的高通量计算带来的理论预测的局限性以及标准合成技术的局限性。